VX121P/151P/171P(-QM57)
User’s manual rev.0.0 (Preliminary)
MU-C656.xxxxxxxxxx r.0.0-EN
43 of 68
8.5 Internal Power supply 24Vdc (option)
Type:
ATX.
Input voltage:
18 to 30Vdc, nominal 24Vdc.
Input current:
14A (rms) for 24Vdc.
Inrush current:
20A at nominal input, 25°C cold start.
Efficiency: 75% min at nominal input and rated output.
MTBF:
100.000 hours at full load at 25°C (fan not included).
Standards: UL,CSA,TUV, CE.
Output power:
up to 150W (at 25°C)
Output voltage
(dc)
Output current
(max)
Tolerance
+3.3V
12A
5%
+5V
12A
5%
+12V
10A
5%
-12V
0.3A
10%
+5Vsb (stand by)
2A
5%
Notice
The total output power on +5V & +3.3V is 80W max.
The total output power on +5V & +3.3V & +12V is135W max.
The total power available for expansions (e.g. USB/PCI) is 10W.
Inside the Panel PC the common (0V) of the output voltages is connected to the
metal frame.
Warning
The insulation towards the main voltage depends on the external
power supply to the Panel PC. The Panel PC must be supplied by a
limited power source according to EN60950. Use a switching power
supply protected against overcurrent which complies with the
requirements of safety extra low voltage (SELV) which conforms to
the safety standard EN60950 or equivalent.
It’s recommended using a power supply reserved for the Panel PC.
None of the wiring terminals is designed to be connected to parts at
hazardous voltage. The wiring from the external power supply to the
Panel PC must comply with the requirements of safety extra low
voltage (SELV).